Drilling-machine.



' PATENTED 9119,1,y 1905.

W. WATTIB.

DRILLING MACHINE.

, APILIGATIQNl FILED MAB..10,19Y04.

'lla- SHEETS-SHEET 1. l

No. 796,095. y 'y PATENTED AUG.1,-1905.

. I W. WATTIB.

DRILLING MACHINE.

yAPFLIOATION FILED HAE. 10, 1.904.

SHEETS-BHEET 3.

UNITED sT-ATEs PATENT oEEIoE.

WILLIAM WATTIE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO` CROMPTON &KNOWLES LOOM WORKS, A CORPORATION OF MAS- A SACHUSETTS.

DRILLING-MACHINE.

Specification of Letters Patent. g

Patented Aug. 1, 1905.

Application lc March 10, 1904. Serial No. 197,486.

To fbi/Z whom t may concern:

Be it known that I, WILLIAM WATTIE, a citizen of the United States,residing at Worcester, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inDrilling-Machines, of which the following is a specification.

My invention relates to a machine for drilling the'holes in the wood barof a loom pattern-chain to receive the pattern-pins formingthe'indicating-surfaces for the shedding mechanism. Said pattern-chainbars are particularly used in dobbies In a wood bar for a loompattern-chain there are a series of holes in parallel rows, which arebored into or through the bar in the direction of its thickness and areadapted to receive the pattern-pins. ordinarily of metal. There is' onehole bored through each end of the bar in the direction'of its width toreceive the metal attaching-eyes, which hold the metal links whichconnect the bars attheir ends, to form an endless pattern-chain,made upof any desired number of bars, and each endof thebar is cut on a bevel.Heretofore it has been customary to use a multiple drilling-machine ofany well-known construction and operation having a set of drillsto drillthe holes for the pattern-pinsinto or through the blank from which thepattern-chain bar is made (said blank has beveled .side edges) and touse a second machine to drill the holes through the ends of the bars forthe attaching-eyes and to use a third machine for cutting off the endsofthe blank on a bevel, thus requiring three separate machines and threeseparate operations to make a'pattern-chain bar from the blank.

The object of my invention is to combine in one machine a multipledrilling-machine of ordinary construction and operation for drilling theholes in the blank for the patternpins, mechanism for drilling the holesin the ends of the blank for the attaching-eyes, and also mechanism forcutting oif the ends of the blank on a bevel, so as to be able to makeon one machine and' at one time a complete pattern-chain wood bar fromthe blank previously made.

In' my improved machine the several operations for completing thepattern-chain bar from the blank are entirely automatic. An endlesschain or apron operated automatdril'ls of the multiple drilling-machine.

cally holds and carriesthe blanks under the The drills may bearranged'in one or more rows to drill simultaneously a row of holes inone or more blanks. The number of drills in `a row corresponds to thenumber of holes in al row to be drilled in the blank. From thedrilling-machine the endless apron carries the blanks to two revolvingsaws, which cut oif the ends of the blanks on a bevel, and from the sawsthe endless apron carries the blanks to two drills, which drill a holethrough each end of the blanks for the attaching-eyes. The severaloperations on the blanks are being performed simultaneous on differentblanks in my improved machine. andfthe nished bars are automaticallydischarged from 'the endless apron and new blanks are placed in theendless apron by the attendant or automatically. My invention consistsin certain novel features of construction of my improvements, as

will be hereinafter fully described.

I have only shown in the drawings suiicient portions of a multipledrilling-machine of any ordinary and well-known construction, providedin this instance with two sets of drills, and my improvements combinedtherewith to enable those skilled inthe art to which my inventionbelongs to understand the construction and operation thereof. Y v

Referring to the drawings, Figure 1 is a front view of a machineembodying my improvements looking in the direction of arrow a, Fig. 2.Some of the parts shown in Fig. 2 are left 0E and the supporting-frameis shown in section. Fig. 2 is a side view of the parts shown in Fig. 1looking in the direction of arrow b, same figure. The two belt-pulleysare not shown in this ligure, and some parts are shown which are notshown in Fig. 1. Fig. 3 is a sectional plan view of some of the partsshown in Figs. l and 2 detached. The endless apron carrying the bars isnot shown in this figure. Fig. .Lis-a plan view of a portion of theendless apron which carries the pattern-bars, detached, looking in thedirection of arrow c, Fig. 5. Fig. 5 is an edge view of the apron shownin Fig. 4 looking in the direction'of arrow d, same figure. Fig. 6 is,on

anenlarged scale, asection through the endless chain or apron looklng 1nthe direction of arrow e, Flg. 7 and also a section through one of thehorizontal drills. Fig. 7 is a plan view of the part-s shown at the leftin Fig. 6 looking in the direction of arrow f, same tigure. The drillmechanism is not shown in this ligure. Fig. 8 is a front view of some ofthe parts shown in Fig. 7 looking in the direction of arrow g, sameligure. Fig. 9 is a plan view of a blank from which the patternchain baris made. Fig. 10 is a plan View of the completed pattern-bar, and Fig.11 is a side view of the bar shown in Fig. 10 looking in the directionof arrow t, same figure.

The multiple drilling-machine shown in the drawings maybe of anywell-known construction and operation, and as the same forms no part ofmy invention, except as it is used in combination with my improvements,it will not be necessary to describe the same in detail.

In the accompanying drawings, 1 is a frame or table on which the severalparts of the machine are su pported.

2 represents stands secured to the table 1.

3 is a stand or frame of the multiple drilling-machine secured to thestands 2.

The multiple drilling-machine consists of or more sets of drills 6 atits lower end. The individual drills 6 are appropriately rotated bysuitable operating means-as, for instance, by the pulley 8, which may bedriven by suitable belting passing about the same and guided by pulleys7 7; lbut such means forms no part of the present invention and needs nofurther description, since it is well understood in the art. Avertical'reciprocating motion is communicated tothe head 4 and thedrill-holder 5, in this instance by a cam 9 on the driven shaft 10,through lever 11,1ink-connector 11', and crank-arm 12 on rock-shaft 13,mount-ed in bearings on the stand 3. (See Fig. 2.) Spiral springs 14 actas cushion-springs.

Extending directly below the sets of drills 6 is an endless chain orapron 15, which is made up of separate bars 15', pivotally linkedtogether in any suitable way and supported at each end onsprocket-wheels 16 and 17 on shafts 16 and 17. (See Fig. 6.)

The blanks 18 are held on the chain 15, in this instance by twospring-actuated pins 15" on each bar of the chain. The beveled sideedges of the blanks extend in a beveled recess in one edge of the barsof the chain and are held therein by the spring-actuated pins 15 on theadjoining bar. (See Fig. 6.)

The endless chain 15 is located just below the drills 6 and in such aposition that the drills will operate on the blanks to drill the holestherein for the pattern-pins. IOn each side of the chain 15 is a post 15on the table 1, the upper end of which is in this instance made yokeshape to extend under and support `the' ends of two blanks during thedrilling Operation; (See Fig. 2.)

An intermittent motion is communicated to the shaft 17, carrying thesprocket-wheels 17, to cause the movement of the chain 15 to carry theblanks 18 under the drill 6, in this instance by a cam 19, fast on thedriven shaft lO, and a vertically-moving link er connector 20, carryinga pin or roll to engage the camgroove in the cam 19 and also carrying atits upper end a give-way connection 2.1 to a pin 22 in the end of an arm23 on a hub 24 of the pawl-supporting arm 25, carrying the pawl 26,which engages with and rotates the ratchetwheel 27, fast on the shaft17, carrying' the sprocket-wheels 17. (See Figs. 1 and 2.) The lhub 24is loose on said shaft 17. The spring 29 holds the pawl 26 in engagementwith the ratchet-wheel 27.

At each partial rotation of the sprocketwheels 17 two blanks 18 arebrought into position under the two sets of drills 6, as shown in Fig.2. The multiple drilling-machine is then operated to cause the two setsof drills 6 to simultaneously drill in two separate blanks 18 a seriesof holes .18' lor the pattern-pins. A(See Fig. 10.) The operating-cam 19is so shaped as to communicate, through intermediate mechanism, a secondmovement to the sprocket-wheel shaft 17' to move the endless chain 15and carry the blanks which have already been drilled with one set ofholes into a position under the drills 6 so that a second set ofparallel holes, as shown i n Fig. 10, will be drilled in the sameblanks. To hold the endless chain 15 in position during the drilling o1the holes, l use in this instance lingers 30, carried on the upper endof a vertically-moving rod 31 within the posts 15" at each side of theendless chain 15. Therods 31 have a vertical motion communicated theretoat the proper time to release the chain and ,allow it to move and toengage the edges of the chain to hold it in position during the drillingoperation, through rolls 31' engaging cams 32 on cross-shaft 33, whichhas beveled-gear connections, through bevel gears 34 and 35, with thedriven shaft 10. (Sec Figs. 1 and 2.) After thel holes 18' have beendrilled in the blanks 18 the movement of the endless chain 15 carriesthe blanks 18 in front of the rotary saws 36, one on each side of thechain. Each rotary saw 36 is fast on the inner end of the inclined shaft37, which is mounted in bearings 38 on a bracket 38, having a hubthereon which is adjustably mounted on a transverse rod 39, secured tothe stands 2. O11 the outer end of each shaft 37 is fast a groovedpulley 40, which is belted to a grooved pulley 41, fast on the drivenshaft 42, as shown by broken lines 43 in Fig. 2. The movement of theapron or endless chain 15 carries the blanks 18 under the rotary saws36, which act to cut olf the projecting ends of the blanks After theblanks 18 have passed on a bevel.

'under the rotary saws 36 the movement of the apron 15 carries theblanks 18 into position to be operated on by the horizontal drills 44 tohave the .transverse holes 18l drilled through their ends. In order tohold the blanks 18 in positionduring the drilling of the transverseholes 18,

yI provide in this v'instance two downwardlyextending arms 45, the lowerends of which are adapted to eXtend in front of and engage the blanks18, as shown in Figs. 2 and 6.

' The arms 45 are fast on a rock-shaft 46, mountedv in suitable bearingson the stands 2. On the outer end of the rock-shaft 46 is fast acrank-arm 47, which is pivotally connected to the upper end of a link orconnector 48. The

" lower end of said link or Connector 48 is pivotally connected to theouter end of a levery 49, which is pivoted at its other end on a stand50, secured to the frame 1. (See Fig. 2.) The lever 49 carries a roll49', which travels on the periphery of apc-am 51 fast on the shaft 33.

The shape yof the cam 51 is such that the engaging arms 45 will operateat the proper time to engage and hold the blanks 18 during the drillingoperation and release them after they are drilled preparatory to thecontinued movement of the apron 15.

Each horizontal drill 44'is fast in. a drillspindle 52, which is mountedto havea rotary motion in a sleeve 53 and also have a longitudinalmotion with said sleeve. Each sleeve f 53 is mounted in a bearing 54 onthe upper end of a stand 54. The lower end of the stand 54 has in thisinstance a recess therein to lit onto and travel on the transverse track55, secured to the frame 1, in case of any desired lateral adjustment ofthe stand 54.

A rocking shaft 56 is mounted in the stands .54 and has secured thereontwo pinions' 57, one for each of the sleeves 53, which have teeth 53thereon to be engaged by the pinion 57, tas shown in Fig. 6.

' drill-spindle 52 extends into an elongated hub 64 (see Fig. 6) on abevel -gear 64 and is splined t0 said hub 64l to rotate therewith and atthe same time have a longitudinal motion therein. The hubs 64 of thebevel-gears64 are mounted in bearings 54l on the stands 54. Thebevel-gears 64 mesh with bevel-gears 65, fast on the shaft 42, whichismounted in hear- 'j ings '66- on stands 66, secured to the frame 1. Apulley (not shown) is fast on one end of the An arm 58, fast on -one endof the shaft 56, is connected by a link shaft 42 to communicate acontinuous rotary motion thereto.

In Fig. 2 is shown a shipper-lever 67, which is adapted to operate aclutch 68 to connect and disconnect the driven pulley 69 on the shaft10.

From the above description in connection with the drawings the operationof my improvements in drilling machines will be readily understood bythose skilled in the art.

The blanks 18 (shown in Fig. 9) are first placed in the endless chain orapron 15, the machine is then-put into operation, and the intermittentmovement of the endless chain 15 carries the' blanks undertheverticallymoving drills 6, which operate to drill one series of holesin two blanks simultaneously. During the drilling operation the endlessapron 15I remains stationary. After the drilling operation the endlesschain 15 is again moved and a second set of holes is drilled in one ofthe blanks 18 and a first set'of holes in another blank. r Thisoperationis repeated until the endless chain or apron 15-has carried theblanks 18 in position to be operated on byVr the rotary saws 36, whichact to cut off the projecting ends of the blanks on a bevel. After theblanks 18 have passed under the saws 36 the continued movement of theendless chain 15 carries a blank 18 in position to be operated on by thehorizontal drills 64. The engaging arms 45 are caused to engage thebIank'atthe proper time, and the horizontal drills 44 are moved forwardto drill the transverse holes 18, one in each end of the blank. Thedrills 44 are then withdrawn and the movement of the endless chain 15 iscontinued. l It will th us be seen that the operation of my machine isentirely automatic and that the blanks are operated on by threedifferent mechanisms, which act simultaneously to make the completepattern-bar. (Shown in Fig. 10.)

It will be understood that the details of construction of myimprovements may be varied, if desired, and the several parts maybe madeadjustable to operate on blanks of different length, width, andthickness, and one or more series of holes may be drilled for thepatternpins, as desired.

I do not limit my improvements to making loom pattern-chain bars, asthey may be used for any other purpose.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

y 1. In a machine for making loom patternchain bars, the combination ofa drill-head containing a series of drills,l means for operating saiddrills for drilling holes through said bars, a series of drills disposedat substantially right angles to the first-named series vand in theplane of advance of the work for drilling holes through the ends of saidbars at right angles to the holes formed by the said first series of'drills, inclined cutting mechanism disposed between the two series ofdrills for beveling the. ends of the bars prior to the action ofthesecond series ofl drills, and means forv feeding successive barssimultaneously to the first series ofl drills, the cutting mechanism andsecond series of' drills.

V2. In a machine for making loom patternchain bars, the combination of adrill-head containing a series of drills, means f'or operating saiddrills for drilling holes through Said bars, a series of' drillsdisposed at substantially right angles to the first-named series and inthe plane of' advance of the work for drilling holes through the ends ofsaid bars at right angles to the holes formed by the said first seriesofl drills, inclined cutting mechan-4 ing holes through said bars, aseries of' drills disposed at substantially right angles to thefirst-named series and in the plane of advance of' the work f'ordrilling holes through the ends of' said bars at right angles to theholes formed by the said first series of drills, inclined cuttingmechanism disposed between the two series of' drills for beveling theends of' the bars prior to the action of the second series of' drills,an endless chain or apron f'or feeding successively and simultaneouslybars to the first series of' drills, the cutting mechanism, and thesecond series of' drills, said chain or apron having vertically-yieldingclamping devices for securing the bars thereon, and means f'orintermittently moving said chain or apron.

LI. In a machine for making loom patternchain bars, the combination of aseries of drills, means f'or operating said drills vfor drilling holesthrough said bars, a series ofl drills disposed at substantially rightangles to the first-named series for drilling holes through the ends ofsaid bars at right angles to the holes formed by the said first seriesof' drills, inclined cutting mechanism disposed between the two seriesof drills f'or beveling the ends of' the bars prior to the action of'the second series of' drills, an endless chain for feedingbar forautomatically clamping the pattern-l chain bars in position on thechain, and means for intermittently moving the chain.

5. In a machine for making loom patternchain bars, the combination of'an endless chain f'or feeding successively and simultaneously bars tothe operating mechanism` a drill-head containing a series of drills f'ordrilling holes vertically through said bars, a second series of' drillsdisposed at substantially right angles to the first-named series ofdrills and in the plane of' advance ofl the work for drilling holesthrough the ends of said bars, intermittently-acting holding-arms forengaging the pattern-chain bars during the action of the second seriesof drills, means f'or intermittently moving the endless chain, a lockfor holdingI the chain during its intervals of rest.

6. In a machine f'or making loom patternchain bars, a drill-headcontaining a series of drills, a second series ofl drills disposed atright angles to the first series and in the plane of advance of thework,an inclined cutting mechanism disposed between the two series of'drills for bcveling the ends of the bars prior to the action of' thesecond series ofl drills, an endless chain for feeding the barssuccessively to the first series of' drills, the cutting mechanism, andthe second series of drills, automatically-operated means forsuccessively and simultaneousl y operating the first-named series of'drills, the traveling apron, the locking mechanism and the second seriesof' drills, means for intermittently moving the chain, and a lockdisposed at the sides of the chain f'or holding it in position duringthe action ol the drills.

7. In a machine for making loom patternchain bars, a series of' drills,asecond series of drills disposed at substantially right angles to saidfirst-named series and in the plane oi advance of the work, a cuttingmechanism, disposed between the first' and second series of drills, anendless chain for presenting the bars respectively to the first seriesof` drills, the cutting mechanism and the second series of' drills,means for giving the endless chain an intermittent motion, and automaticmeans for reciprocating the two series of"drills. y

8. In a machine for making loom patternchain bars, a series ofl drills,a second seriesof drills disposed at substantially right angles to saidfirst-named series ofl drills and in the plane of' advance of' the work,a cutting mechanism situated between these two series, an endless chainfor presenting the bars respectively to the first-named series of`drills, the cutting mechanism and the second series of drills and meansfor giving an intermittent motion to the said chain and means f'orreciprocating the two series of' drills, one series being reciproeatedindependently ofl the other series.

9. 1n la machine for making loom patternchain bars, a series of drills,a second series of drills disposed at substantially right angles to saidfirst series and in the plane of advance of the Work, cutting mechanismdisposed between these series of drills, an endless chain for presentingthe bars respectively to the first series of drills,the cuttingmechanism and the second series of drills and separate cam-

